[R] Converting date variables to integers for regression

Mark Scarr mscarr at excitehome.net
Wed Nov 28 23:23:28 CET 2001

Hi All,

I am performing some piecewise linear 
regression where my X-variable is the date mm/dd/yyyy
stored as a character vector. I would like to convert this
to an integer vector so I can set up dummy variables for the knots
and then perform the regression. Alternatively is it possible to 
work with date objects? I was able to use certain binary operators
such as "-" with date objects, but am uncertain if it is possible
to use such objects for regression?

Any help would be most appreciated.

Thanks in advance


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